20297525

素因数分解:

$5^2\times {\mathrm{149}}^1\times {\mathrm{5449}}^1$

素因数の和:5608

約数の個数: 12

約数和(自身を含む): 25342500

約数和(自身を除く): 5044975

約数列:

[1, 5, 25, 149, 745, 3725, 5449, 27245, 136225, 811901, 4059505, 20297525]

約数ペア:

[(1, 20297525), (5, 4059505), (25, 811901), (149, 136225), (745, 27245), (3725, 5449)]